Burse pleaded guilty to manslaughter Friday after his murder conviction was vacated by Judge Byron Williams, who imposed the new sentence.

"This case involved two boys who were very close friends and made very stupid mistakes," Assistant District Attorney Laura Rodrigue said in the news release. "Their families knew each other and had been trying to keep their sons on the right path. Both families suffered devastating losses through the actions of both the defendant and the victim."

According to Cannizzaro's office and past news accounts, a bullet fired by Burse struck Davis as they tried to rob a security guard in 2010.

The guard had refused to turn over his revolver when the teens tried to rob him. Davis fired, striking the guard in the arm and finger. A bullet fired by Burse ricocheted and hit Davis, killing him.